ICMP Blocking Woes
Sean Donelan
sean at donelan.com
Thu Oct 2 06:16:36 UTC 2003
Various ISPs have been trying lots of different ICMP filters. You can
see some of the impact on the Internet average graphs from XAffire.
http://www.xaffire.com/press/ea/EA20030902_images?rf=EM005
Xaffire/Matrix Systems apparently used ping packets that were the
same size as those being filtered by some ISPs. According to Xaffire
service providers implementing filters included Cable & Wireless and
Level 3.
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